期刊
ACS CENTRAL SCIENCE
卷 3, 期 6, 页码 668-672出版社
AMER CHEMICAL SOC
DOI: 10.1021/acscentsci.7b00186
关键词
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资金
- MIT Tata Center for Technology and Design
- National Science Foundation CAREER Award [DMR-1452612]
- Sloan Foundation
- Research Corporation for Science Advancement (Cottrell Award)
- ARPA-E
The capture of water vapor at low relative humidity is desirable for producing potable water in desert regions and for heat transfer and storage. Here, we report a mesoporous metal-organic framework that captures 82% water by weight below 30% relative humidity. Under simulated desert conditions, the sorbent would deliver 0.82 g(H2O) g(MOF)(-1)) nearly double the quantity of fresh water compared to the previous best material. The material further demonstrates a cooling capacity of 400 kWh m(-3) per cycle, also a record value for a sorbent capable of creating a 20 degrees C difference between ambient and output temperature. The water uptake in this sorbent is optimized: the pore diameter of our material is above the critical diameter for water capillary action, enabling water uptake at the limit of reversibility.
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